-- @testpoint: opengauss关键字source(非保留)，作为函数名，部分测试点合理报错

--关键字不带引号-成功
drop function if exists source;
create function source(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function if exists source;
--关键字带双引号-成功
drop function if exists "source";
create function "source"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function if exists "source";
--关键字带单引号-合理报错
drop function if exists 'source';
create function 'source'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `source`;
create function `source`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
